Structure 37 0179 · Santa Clara County, CA

State Route 237 over Mathilda Avenue

Carries State Route 237 over Mathilda Avenue, 04-scl-237-2.99-sunv.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT183 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 7/9Substructure 7/9

183 ft end to end, longest span 80 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built196165 years old
Length183.4 ft55.9 m
Daily traffic68,000counted 2009
Last inspectedApril 2023every 24 months

Location

StateCalifornia
CountySanta Clara
Location04-scl-237-2.99-sunv
CarriesState Route 237
CrossesMathilda Avenue
Coordinates37.40301, -122.02691

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length183.4 ft (55.9 m)
Max Span80.4 ft (24.5 m)
Deck Width88.6 ft (27 m)
Deck Area1509.3 sq m
Main Spans2
Year Built1961

Traffic

Avg Daily Traffic68,000 (2009)
Truck Traffic6%
Lanes On Bridge4
Lanes Under Bridge9

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number37 0179

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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